Battery Saver Relay Circuit Fault
This code indicates a problem in the battery saver relay circuit.
Heads up: this code wasn't in our hand-written library yet, so DiagCoach AI built this page on the fly. Double-check critical specs against service info before condemning parts.
What it means (plain English)
The computer is seeing an issue where the battery saver relay isn't working as it should, which can drain your battery if it stays on too long without turning off.
What the computer is actually seeing
The control module expects the battery saver relay to activate or deactivate at certain times based on vehicle operation. If the relay stays engaged longer than 10 minutes after the vehicle is off, it sets this code.
What a healthy reading looks like
The battery saver relay should have an activation voltage of around 12V when engaged and drop to 0V when disengaged after the vehicle is turned off.
Guided diagnostic — the DiagCoach way
Don't just throw parts at it. Walk through these in order — each step tells you whether to keep going or stop and fix what you found.
- 1Inspect the battery saver relay and connector for physical damage or corrosion. If found, repair or replace the damaged components. Decision: Relay and connectors okay?
- 2Check the wiring for continuity and proper voltage. Look for shorts to ground or other circuits. Expected voltage should be 12V when active. Decision: Wiring and voltage good?
- 3Test the battery saver relay by swapping it with a known good relay of the same type. Decision: Code returns or not?
- 4If the code persists after relay and connector checks, inspect the control module for faults. Verify ground and power connections to the module are secure.
Common causes
- Faulty battery saver relay
- Wiring issues (short or open circuit)
- Connector problems (corrosion or disconnection)
- Control module malfunction
- Battery maintainer or system load issues
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
Yes, but it's best to address it soon to prevent battery drain.
Will this code come back after I fix it?
If the issue is resolved properly, the code should clear and not return.
Why does this code pair with others like B1350?
These codes are often linked to the same relay or circuit issues, indicating multiple potential failures in the battery saving system.
Working a real vehicle right now?
Let DiagCoach walk you through it live with your specific symptoms, vehicle, and what you've already checked.
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